Aircraft seat



FIG. 1 is a rear elevational view of an aircraft seat showing our new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a top plan view thereof; and,

FIG. 4 is a bottom plan view thereof.

Portions of FIGS. 1-4 that are shown as broken lines are for illustrative purpose only and form no part of the claimed design. 

The ornamental design for an aircraft seat, as shown and described. 